242210042 has 16 divisors (see below), whose sum is σ = 373405032. Its totient is φ = 117761280.

The previous prime is 242210041. The next prime is 242210047. The reversal of 242210042 is 240012242.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 72403081 + 169806961 = 8509^2 + 13031^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 242210042.

It is not an unprimeable number, because it can be changed into a prime (242210041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20948 + ... + 30384.

Almost surely, 2^242210042 is an apocalyptic number.

242210042 is a deficient number, since it is larger than the sum of its proper divisors (131194990).

242210042 is a wasteful number, since it uses less digits than its factorization.

242210042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9793.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 242210042 is about 15563.0987274386. The cubic root of 242210042 is about 623.3482075498.

Adding to 242210042 its reverse (240012242), we get a palindrome (482222284).

The spelling of 242210042 in words is "two hundred forty-two million, two hundred ten thousand, forty-two".